Press for closing and opening sheet-metal receptacles.



Noi 850,092.

PATENTED APR. 9, 1907.

J. MERGKENS. AND OPENING SHEET METAL REGBPT APPLIUATION FELED IEB.9.19|06.

AGLES.

PRESS FOR CLOSING born/amy- UNITED STATES PATENT OFFICE.

JOHN ldERCKENS, OF CHICAGO, ILLIN O'IS.

PRESSFOR CLOSING AND OPENING SHEET-METAL RECEPTACLES.

Specification of Letters Patent.

Patented April 9, 1907.

Application filed February 9, 1906, Serial No, 300,332.

and. opening sheet-metal receptacles which.-

are formed of two parts having telescoping side Walls with registering grooves and shoulders and which are adapted to be forced lnto interlocking engagement with each other through the resilient yielding of said walls.

The particular device which is herein described is designed to lock and unlock a pocket savii'igs-banlr. composed of two cylindrical parts telescoping with each other and each having in its side walls an annular crease or bead, said beads being adapted to interlock with each other, so as to prevent the separation of said parts except through the ap plication of considerable power.

The main object of this invention is to provide a ,simple and improved form of press which is capable of securely gripping annular shoulders at edges of such receptacle for forcing together or separating its two parts. I accomplish this object by'the device shown in the accompanying drawings, in which Figure 1 is a top plan of a press constructed according to this invention and designed for openin and closing savings-banks of the form shown in Fig. 4. Fig. 2 is a front elevation of the same. Fig. 3 is a plan. of the gripping face of one of the .jaws of the press. Fig. 4 is a transverse section illustrating the type of sheet-metal receptacle for the opening and closing of which the herein-descr1bed press is. p articularl designed.

The receptacle s 1own in Fig. 4 consists of a pocket savings-bank formed of sheet metal and comprising two parts-a body' ortion 1 anda cover 2'eac h ofpylindrical l each-closed at one end -Tl'ieseparts are construct ed'of resilient sheet metal, and-each is orrn and provided with anoutwardly-projecting flange :or bead 3 atthe periphery of its closed end.

This beadserves as a shoulder for engage ment with the jaws bf the press.- The side walls of the part 1 are somewhat less in height than those of the part 2, so that when said parts are interlocked in telescopic engagement with each other, as shown in Fig. 4, and the rim 4 of the cover bears against the room beyond the-rim. of the part 1 for a coinslot 5 in the wall oi" the receptacle. walls of the parts 1 and 2 are each spun outward at 6 to form an annular shoulder on one and a registering groove in the other which will. spring into interlocking engagementwhen the parts 1 and 2 are forced together in the relation shown in Fig. 4.

When the receptacle is closed, it is practically impossible to separate the parts 1 and 2, except by means of special apparatus. The

press-which is herein shown 18 designed particularly for opening and closing a receptacle of this type. In the form shown this press consists of a bed-plate or lower jaw 7 and a frame 8, rigidly mounted thereon. The bed 7 has centrally located thereon a U-shaped flange or rim 9, extending upwardly and in wardly, so as to fit the sides of the receptacle -1 and provide a groove 10, adapted to fit the bead 3.

A second jaw 11, corresponding in form to the jaw 7, is mounted in the frame S in a position directly 0 posed to said first jaw and is provided with a similar flange l2 and groove 18. The jaw 11 is provided with a vertical shank 14, which is slidable in the frame 8', so as to move the jaw 11 toward and away from the jawfi. A rack 15 is formed on one side of the shank 14 and en ages a pinion 16, which is journal d in the Frame 8 and operated by means of a lever 17. The flanges 9 and 12 are each provided with a plunger 18. 13, respectively, and provide means for pushing the parts of the bank out of engagement with the jaws of the press. The plungers 18 are normally held in a withdrawn position by means of springs 19. A sto -pin 20 limits the downward movement of t e jaw 11 to a os'ition corresponding to the standard eight ofcan for which the rose is designed.

In the operation of the evice shown the lever 17 is thrown up until its movement is limited by the stop 20. This brings the jaws 11 and 7 into position for receiving the closed bank. The bank is then slid sidewise be- .tween the jaws, so that the heads 8 enter engagement with the grooves 10 and 13; By forcing the lever 17 downward the jaw 11 is lifted, and the two parts of the bank are then forced apart. Each )art is then removed from the press by strl ing the plunger 19. To close the bank, the parts maybe pushed into telescopic er'igagement with each other flange 3 of the body part 1 then there will be The side These enter the grooves 10 and i combination of a groove.

What 1 claim as my. invention, and desire to secure by Letters Patent, is-

1. in a device of the class described, the combine-thin oi a pair of jaws having opposed (reacting laces-each having; projecting from its face a grooved rim adapted to engage one of the beaded heads of a can at oppositesides thereof, and means for pulling said jaws apart while in position to retain their grip on said heads. 1 z 7 2. in a device of the class described, the pair of jaws having opposed enacting faces, each having projecting from its lace a U-shaped rim having an inner groove extending tlmmghout its length, said rims being adapted to engage the heads of a recqitacle for the purpose ofpulling the res peetive members apart, and mechanism foi forcing one of saidjaws toward and awa r from the other.

3. In a device-oi the class described, the combination ofa' pair ()fJi'lVVS having opposed reacting faces, each having projecting from receptacle for the purpose of pulling the re its face a U-shaped' rim havingan inner groove extending tl'irougho'ut its length, said rims. being adapted to engage the heads of a spective members apar t, said rims having substantially the same inner size and form,

to yieldand permit theinter This may 3 one of said jaws other.

class described, the j aws having opposed ving projecting from toward and away from the 4. In a device of the I combination of a pair of j enacting faces, each ha i its face a rim extending around threesides 1 thereof and open toward the other side, and each of said rims having an. inner groove ex tending throughout the length of member seated in the part of the rirnopposite the open side, and havin r limited movement across the groove in the direction of said open side; and mechanism for forcing one of said jaws toward and away from the otherv 5. In a device of the combination of a pair of jaws having opposed enacting faces, each having projecting from its face a rim extendingeround three sides thereof and open toward the other side, and eachof said'rims having an inner'groove extending throu hout the length of the rim; a member seateiiin the art of the rim opposite the open side,- slid went across the groove said open side said more urged outwardly of said anism. for forcingone of away from the other.

Signed. at Chicago this 27thz-day of Jannary, 1906.

' JOHN MERGKENSQ I and mechanism for forcing class described, the

in the direction of move; and mech S&l(i 1aws toward and Witnesses:

MILTON. FSTEIN, ,WM. R.'RUMMLER.

i'aving limited moveher being normally the rim ya 

